4 * Copyright (C) 2013 Renesas Solutions Corp.
5 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
14 #include <linux/clk.h>
15 #include <linux/device.h>
16 #include <linux/dma-mapping.h>
18 #include <linux/list.h>
19 #include <linux/module.h>
20 #include <linux/of_device.h>
21 #include <linux/of_irq.h>
22 #include <linux/sh_dma.h>
23 #include <linux/workqueue.h>
24 #include <sound/rcar_snd.h>
25 #include <sound/soc.h>
26 #include <sound/pcm_params.h>
31 * The register address offsets SRU/SCU/SSIU on Gen1/Gen2 are very different.
32 * This driver uses pseudo register in order to hide it.
33 * see gen1/gen2 for detail
39 RSND_REG_SRC_BUSIF_MODE,
40 RSND_REG_SRC_ROUTE_MODE0,
52 RSND_REG_AUDIO_CLK_SEL0,
53 RSND_REG_AUDIO_CLK_SEL1,
87 #define RSND_REG_SRC_ROUTE_SEL RSND_REG_SHARE01
88 #define RSND_REG_SRC_TMG_SEL0 RSND_REG_SHARE02
89 #define RSND_REG_SRC_TMG_SEL1 RSND_REG_SHARE03
90 #define RSND_REG_SRC_TMG_SEL2 RSND_REG_SHARE04
91 #define RSND_REG_SRC_ROUTE_CTRL RSND_REG_SHARE05
92 #define RSND_REG_SRC_MNFSR RSND_REG_SHARE06
93 #define RSND_REG_AUDIO_CLK_SEL3 RSND_REG_SHARE07
94 #define RSND_REG_AUDIO_CLK_SEL4 RSND_REG_SHARE08
95 #define RSND_REG_AUDIO_CLK_SEL5 RSND_REG_SHARE09
98 #define RSND_REG_SRC_CTRL RSND_REG_SHARE01
99 #define RSND_REG_SSI_CTRL RSND_REG_SHARE02
100 #define RSND_REG_SSI_BUSIF_MODE RSND_REG_SHARE03
101 #define RSND_REG_SSI_BUSIF_ADINR RSND_REG_SHARE04
102 #define RSND_REG_INT_ENABLE RSND_REG_SHARE05
103 #define RSND_REG_SRC_BSDSR RSND_REG_SHARE06
104 #define RSND_REG_SRC_BSISR RSND_REG_SHARE07
105 #define RSND_REG_DIV_EN RSND_REG_SHARE08
106 #define RSND_REG_SRCIN_TIMSEL0 RSND_REG_SHARE09
107 #define RSND_REG_SRCIN_TIMSEL1 RSND_REG_SHARE10
108 #define RSND_REG_SRCIN_TIMSEL2 RSND_REG_SHARE11
109 #define RSND_REG_SRCIN_TIMSEL3 RSND_REG_SHARE12
110 #define RSND_REG_SRCIN_TIMSEL4 RSND_REG_SHARE13
111 #define RSND_REG_SRCOUT_TIMSEL0 RSND_REG_SHARE14
112 #define RSND_REG_SRCOUT_TIMSEL1 RSND_REG_SHARE15
113 #define RSND_REG_SRCOUT_TIMSEL2 RSND_REG_SHARE16
114 #define RSND_REG_SRCOUT_TIMSEL3 RSND_REG_SHARE17
115 #define RSND_REG_SRCOUT_TIMSEL4 RSND_REG_SHARE18
116 #define RSND_REG_AUDIO_CLK_SEL2 RSND_REG_SHARE19
122 struct rsnd_dai_stream;
125 * R-Car basic functions
127 #define rsnd_mod_read(m, r) \
128 rsnd_read(rsnd_mod_to_priv(m), m, RSND_REG_##r)
129 #define rsnd_mod_write(m, r, d) \
130 rsnd_write(rsnd_mod_to_priv(m), m, RSND_REG_##r, d)
131 #define rsnd_mod_bset(m, r, s, d) \
132 rsnd_bset(rsnd_mod_to_priv(m), m, RSND_REG_##r, s, d)
134 u32 rsnd_read(struct rsnd_priv *priv, struct rsnd_mod *mod, enum rsnd_reg reg);
135 void rsnd_write(struct rsnd_priv *priv, struct rsnd_mod *mod,
136 enum rsnd_reg reg, u32 data);
137 void rsnd_bset(struct rsnd_priv *priv, struct rsnd_mod *mod, enum rsnd_reg reg,
139 u32 rsnd_get_adinr(struct rsnd_mod *mod);
145 struct sh_dmae_slave slave;
146 struct work_struct work;
147 struct dma_chan *chan;
148 enum dma_data_direction dir;
151 int offset; /* it cares A/B plane */
154 void rsnd_dma_start(struct rsnd_dma *dma);
155 void rsnd_dma_stop(struct rsnd_dma *dma);
156 int rsnd_dma_available(struct rsnd_dma *dma);
157 int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma,
158 int is_play, int id);
159 void rsnd_dma_quit(struct rsnd_priv *priv,
160 struct rsnd_dma *dma);
172 struct rsnd_mod_ops {
174 int (*probe)(struct rsnd_mod *mod,
175 struct rsnd_dai *rdai,
176 struct rsnd_dai_stream *io);
177 int (*remove)(struct rsnd_mod *mod,
178 struct rsnd_dai *rdai,
179 struct rsnd_dai_stream *io);
180 int (*init)(struct rsnd_mod *mod,
181 struct rsnd_dai *rdai,
182 struct rsnd_dai_stream *io);
183 int (*quit)(struct rsnd_mod *mod,
184 struct rsnd_dai *rdai,
185 struct rsnd_dai_stream *io);
186 int (*start)(struct rsnd_mod *mod,
187 struct rsnd_dai *rdai,
188 struct rsnd_dai_stream *io);
189 int (*stop)(struct rsnd_mod *mod,
190 struct rsnd_dai *rdai,
191 struct rsnd_dai_stream *io);
194 struct rsnd_dai_stream;
197 enum rsnd_mod_type type;
198 struct rsnd_priv *priv;
199 struct rsnd_mod_ops *ops;
201 struct rsnd_dai_stream *io;
204 #define rsnd_mod_to_priv(mod) ((mod)->priv)
205 #define rsnd_mod_to_dma(mod) (&(mod)->dma)
206 #define rsnd_dma_to_mod(_dma) container_of((_dma), struct rsnd_mod, dma)
207 #define rsnd_mod_to_io(mod) ((mod)->io)
208 #define rsnd_mod_id(mod) ((mod)->id)
210 void rsnd_mod_init(struct rsnd_priv *priv,
211 struct rsnd_mod *mod,
212 struct rsnd_mod_ops *ops,
213 enum rsnd_mod_type type,
215 char *rsnd_mod_name(struct rsnd_mod *mod);
220 #define RSND_DAI_NAME_SIZE 16
221 struct rsnd_dai_stream {
222 struct snd_pcm_substream *substream;
223 struct rsnd_mod *mod[RSND_MOD_MAX];
224 struct rsnd_dai_path_info *info; /* rcar_snd.h */
228 int next_period_byte;
230 #define rsnd_io_to_mod_ssi(io) ((io)->mod[RSND_MOD_SSI])
231 #define rsnd_io_to_mod_src(io) ((io)->mod[RSND_MOD_SRC])
234 char name[RSND_DAI_NAME_SIZE];
235 struct rsnd_dai_platform_info *info; /* rcar_snd.h */
236 struct rsnd_dai_stream playback;
237 struct rsnd_dai_stream capture;
239 unsigned int clk_master:1;
240 unsigned int bit_clk_inv:1;
241 unsigned int frm_clk_inv:1;
242 unsigned int sys_delay:1;
243 unsigned int data_alignment:1;
246 #define rsnd_rdai_nr(priv) ((priv)->rdai_nr)
247 #define for_each_rsnd_dai(rdai, priv, i) \
249 (i < rsnd_rdai_nr(priv)) && \
250 ((rdai) = rsnd_dai_get(priv, i)); \
253 struct rsnd_dai *rsnd_dai_get(struct rsnd_priv *priv, int id);
254 int rsnd_dai_is_play(struct rsnd_dai *rdai, struct rsnd_dai_stream *io);
255 int rsnd_dai_id(struct rsnd_priv *priv, struct rsnd_dai *rdai);
256 #define rsnd_dai_get_platform_info(rdai) ((rdai)->info)
257 #define rsnd_io_to_runtime(io) ((io)->substream->runtime)
259 void rsnd_dai_pointer_update(struct rsnd_dai_stream *io, int cnt);
260 int rsnd_dai_pointer_offset(struct rsnd_dai_stream *io, int additional);
261 #define rsnd_dai_is_clk_master(rdai) ((rdai)->clk_master)
266 int rsnd_gen_probe(struct platform_device *pdev,
267 const struct rsnd_of_data *of_data,
268 struct rsnd_priv *priv);
269 void __iomem *rsnd_gen_reg_get(struct rsnd_priv *priv,
270 struct rsnd_mod *mod,
272 #define rsnd_is_gen1(s) (((s)->info->flags & RSND_GEN_MASK) == RSND_GEN1)
273 #define rsnd_is_gen2(s) (((s)->info->flags & RSND_GEN_MASK) == RSND_GEN2)
278 int rsnd_adg_ssi_clk_stop(struct rsnd_mod *mod);
279 int rsnd_adg_ssi_clk_try_start(struct rsnd_mod *mod, unsigned int rate);
280 int rsnd_adg_probe(struct platform_device *pdev,
281 const struct rsnd_of_data *of_data,
282 struct rsnd_priv *priv);
283 int rsnd_adg_set_convert_clk_gen1(struct rsnd_priv *priv,
284 struct rsnd_mod *mod,
285 unsigned int src_rate,
286 unsigned int dst_rate);
287 int rsnd_adg_set_convert_clk_gen2(struct rsnd_mod *mod,
288 struct rsnd_dai *rdai,
289 struct rsnd_dai_stream *io,
290 unsigned int src_rate,
291 unsigned int dst_rate);
292 int rsnd_adg_set_convert_timing_gen2(struct rsnd_mod *mod,
293 struct rsnd_dai *rdai,
294 struct rsnd_dai_stream *io);
299 struct rsnd_of_data {
306 struct rcar_snd_info *info;
310 * below value will be filled on rsnd_gen_probe()
315 * below value will be filled on rsnd_src_probe()
321 * below value will be filled on rsnd_adg_probe()
326 * below value will be filled on rsnd_ssi_probe()
332 * below value will be filled on rsnd_dai_probe()
334 struct snd_soc_dai_driver *daidrv;
335 struct rsnd_dai *rdai;
339 #define rsnd_priv_to_dev(priv) ((priv)->dev)
340 #define rsnd_priv_to_info(priv) ((priv)->info)
341 #define rsnd_lock(priv, flags) spin_lock_irqsave(&priv->lock, flags)
342 #define rsnd_unlock(priv, flags) spin_unlock_irqrestore(&priv->lock, flags)
344 #define rsnd_info_is_playback(priv, type) \
346 struct rcar_snd_info *info = rsnd_priv_to_info(priv); \
347 int i, is_play = 0; \
348 for (i = 0; i < info->dai_info_nr; i++) { \
349 if (info->dai_info[i].playback.type == (type)->info) { \
360 int rsnd_src_probe(struct platform_device *pdev,
361 const struct rsnd_of_data *of_data,
362 struct rsnd_priv *priv);
363 struct rsnd_mod *rsnd_src_mod_get(struct rsnd_priv *priv, int id);
364 unsigned int rsnd_src_get_ssi_rate(struct rsnd_priv *priv,
365 struct rsnd_dai_stream *io,
366 struct snd_pcm_runtime *runtime);
367 int rsnd_src_ssi_mode_init(struct rsnd_mod *ssi_mod,
368 struct rsnd_dai *rdai,
369 struct rsnd_dai_stream *io);
370 int rsnd_src_enable_ssi_irq(struct rsnd_mod *ssi_mod,
371 struct rsnd_dai *rdai,
372 struct rsnd_dai_stream *io);
374 #define rsnd_src_nr(priv) ((priv)->src_nr)
379 int rsnd_ssi_probe(struct platform_device *pdev,
380 const struct rsnd_of_data *of_data,
381 struct rsnd_priv *priv);
382 struct rsnd_mod *rsnd_ssi_mod_get(struct rsnd_priv *priv, int id);
383 int rsnd_ssi_is_pin_sharing(struct rsnd_mod *mod);